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    • 3. 发明公开
    • ALL-PLASTIC POURING SPOUT AND CLOSURE ASSEMBLY
    • US20240199288A1
    • 2024-06-20
    • US18532415
    • 2023-12-07
    • Greif International Holding BV
    • Dale TaylorPedro Miguel DE OLIVEIRA
    • B65D47/06B65D41/34B65D41/46
    • B65D47/063B65D41/3409B65D41/46
    • A securing ring is snap-fittingly engageable over and around an annular mounting flange of a foldable pouring spout in a container closure assembly, with a frangible connection between the securing ring and a spout closure member (e.g. a screw cap) intact. The assembled closure assembly is snap-fittingly engageable over and around a container neck which is received in a groove extending circumferentially about the mounting flange. The groove is defined in part by a radially outer wall having a proximal portion lying towards the pouring end of the spout and a distal end portion lying away from the pouring end of the spout. The radially outer wall comprises a central flexure zone of reduced radial width relative to the proximal and distal end portions, whereby the distal end portion is hingeingly deflectable between a radially outer position for extraction of the spout from a mold tool, and a radially inner position for engagement in an annular undercut in a radially outer surface of the container neck. When the securing ring is snap-fittingly engaged over and around the mounting flange, the distal end portion is held in the radially inner position. The distal end portion comprises a chamfer at its radially inner side and which extends radially inwards towards the pouring end of the spout for guiding the closure assembly into snap-fitting engagement with the container neck.